Measurement of Absolute Oxygen Concentration by Tunable Diode Laser Absorption Spectroscopy (tdlas) in Very Fine Water Mist Environments
نویسندگان
چکیده
Navy research shows that water delivered as a fine mist (or fog) is more effective than sprays in suppressing large scale fires[1, 2]. Fine mists have three distinct advantages. First, the small drop sizes that make up the mist allow the water to reach obstructed fires more easily than larger spray drops. Secondly, the water mist system has a lower water demand than the spray system. Lastly, smaller drops evaporate more rapidly, thus displacing the oxygen more quickly (a 5 μm diameter drop at 300 K in dry air will evaporate in ~17 msec).
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